Help my site rank on Google of 15 Keywords -- Low competition

What type of website do you have? Our product website [login to view URL] Time frame for all keywords is about 6 months. At least 5 keywords should be on top page within 60 days. Success margin is 18/20 What keywords would you like to rank for? best timesheet app 110 employee timesheet app 90 expense management software 390 expense reporting software 240 online time sheet 210 online time tracker 150 quickbooks timesheet 26 timesheet online 110 timesheet tracker 140 time tracking sheets 300 online time tracking 300 online timesheets 200 time tracker software 320 bi weekly timesheet 210 employee hours tracker What search engines and what countries would you like to rank for? Google USA Any additional information to help to help your freelancer? It is our 8-year-old domain. -- Google guidelines must be followed and no way should be compromised -- Only white hat, experienced, highly ranked on freelancer.com SEO experts should bid -- No spam method(s) can be used -- No black hat, gray hat or unethical SEO methods are to be used -- no junk profile building techniques are to be used -- No use of automated software or bots -- No paid traffic sites -- No banned sites, porn, gambling, violent, illegal sites, etc. -- No methods or techniques that will get the site banned, de-indexed or sandbox -- Expert understanding of Google & Panda Updates and how to work with them Only US$ 50 will be released in advance. And the rest of amount will be released as you complete keywords on the top page of Google. We will release 25% of keyword cost after coming reaching the 3rd page. 25% more after in the second page. 50% when it will be reached on the first page